
@mixin border-radius($size){
    -moz-border-radius: $size;
    -webkit-border-radius: $size;
    border-radius:$size;
}

@mixin opacity($val:100) {
     opacity: $val/100;
     filter: alpha(opacity=$val);
}


     @mixin boxshadow($x: 3px, $y: 3px, $shadowcolor: #cccccc) {  
        -moz-box-shadow: $x $y 4px $shadowcolor; // FF3.5+   
        -webkit-box-shadow: $x $y 4px $shadowcolor; // Saf3.0+, Chrome   
        box-shadow: $x $y 4px $shadowcolor; // Opera 10.5, IE 9.0   
        filter: progid:DXImageTransform.Microsoft.dropshadow(OffX=#{$x}, OffY=#{$y}, Color='#{$shadowcolor}');  
        /* IE6,IE7 */  
        -ms-filter: "progid:DXImageTransform.Microsoft.dropshadow(OffX=#{$x}, OffY=#{$y}, Color='#{$shadowcolor}')";  
        /* IE8 */  
    }  

